Class / Patent application number | Description | Number of patent applications / Date published |
436079000 | Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra | 26 |
20090142848 | Removal Of Minerals From Cellulosic Biomass - Disclosed is a method for removing minerals from a cellulosic biomass. For example, the biomass may be prewashed with an acid solution and rinsed with water to remove minerals prior to acid saccharification. The removal of minerals may reduce overall acid requirements, and decrease pretreatment costs. | 06-04-2009 |
20100035351 | Methods for metal assays using optical techniques - An improved optical method for determining metal or a metal compound thereof in a sample with organic impurities. The optical method comprises of solvating the metal in a liquid medium and then mixing this liquid medium with an optical indicator and then measuring the presence of the metal. The improvement lies in removing any organic impurities by the addition of an additive, where the said additive is removed before the optical indicator is added. | 02-11-2010 |
20100173417 | DIAGNOSTIC METHOD - The invention relates to a method to determine the Mg | 07-08-2010 |
20100279420 | BIOSENSORS, AND METHOD AND KITS FOR USING SAME - A stabilised thylakoid membrane formulation comprising thylakoid membranes in a buffered solution and liposomes, wherein the formulation has a ratio of chlorophyll/liposomes of at least about 10:1. The invention further comprises a method for detecting or quantifying the presence of toxic molecules in a fluid sample, comprising obtaining a stabilised thylakoids membranes formulation; and assessing the photosynthetic efficiency of the thylakoid membranes formulation in the presence of said sample, whereby the molecules are detected when the photosynthetic efficiency is measurably different in the presence versus in the absence of the sample. The present invention also comprises kits using the stabilised thylakoid membranes formulation for detecting and/or quantifying the toxic molecule in a fluid sample. | 11-04-2010 |
20110027895 | DETERMINATION METHOD OF MAGNESIUM CONTENT IN ALUMINIUM ALLOY - The present invention discloses a method for determination of magnesium content in aluminum alloy, including: dissolving an aluminum alloy sample, using one or more compounds selected from the group consisting of mercapto-containing compound, acetone cyanohydrin, β-aminoethyl mercaptan, triethanolamine, tetraethylenepentamine, ethylene diamine and oxydol as masking agent, using eriochrome black T or methyl thymol blue as indicator, and using EDTA or CDTA to titrate the sample. | 02-03-2011 |
20120009683 | Fluorescent Metal Ion Indicators with Large Stokes Shifts - The present invention provides fluorogenic compounds for the detection of target metal ions wherein the compounds exhibit a Stokes shift greater than 50 nm and the detectable signal is modulated by photoinduced electron transfer (PET). The present compounds consist of three functional elements, the ion sensing moiety (chelating moiety), the reporter moiety (fluorophore or fluorescent protein) and spacer or linker between the sensing and reporter moieties of the present compound that allows for PET upon binding of a metal ion and excitation by an appropriate wavelength. | 01-12-2012 |
20120064632 | ELECTRO-CHEMICAL SENSOR - The present invention provides an electrochemical sensor having a solid electrically conductive substrate and a compound immobilized thereon which has binding affinity for an analyte species to be detected and also displays electrochemical behaviour which is modified upon binding of that analyte species, so that binding of an analyte species can be detected by measuring electrochemical properties, such as by voltammetry. Desirably the immobilised compound contains both a first moiety with binding affinity for the analyte and a separate second moiety which is a redox system whose electrochemical oxidation/reduction properties become modified when the first moiety binds the analyte. The analyte binding moiety may be a diol or polyol and preferably is a sugar. The electrochemical sensor finds use in methods of analysing reservoir and process fluids, particularly at a subterranean location. The electrochemical sensor may be a component of a downhole tool, adapted for deployment downhole. | 03-15-2012 |
20120164739 | DUAL HEAT STABILIZED POLYMER SENSOR FILMS - Methods are provided for improving the stability and shelf life of film sensors. The film sensors include a combination of polymeric matrix film material, analyte indicator, and solvent which has been heated in a first heat treatment application to volatilize most of the solvent and to solidify the analyte indicator to form the film sensor. The improvement comprises subjecting the film sensor to a second heat treatment to set the film and improve stability and shelf life. | 06-28-2012 |
20120264221 | METHOD FOR QUALIFYING A NON-PARTICULATE ADSORBENT BY MEANS OF A SECONDARY REACTION - The present invention relates to a method for the validation of a non-particulate adsorbent by secondary reaction and a kit for the validation of a non-particulate adsorbent by secondary reaction. | 10-18-2012 |
20130017613 | METHOD AND APPARATUS FOR EXTRACTION OF STRONTIUM FROM URINEAANM KAMINSKI; Michael D.AACI LockportAAST ILAACO USAAGP KAMINSKI; Michael D. Lockport IL USAANM MERTZ; Carol J.AACI Downers GroveAAST ILAACO USAAGP MERTZ; Carol J. Downers Grove IL USAANM SHKROB; Ilya A.AACI ChicagoAAST ILAACO USAAGP SHKROB; Ilya A. Chicago IL USAANM DIETZ; Mark L.AACI EvanstonAAST ILAACO USAAGP DIETZ; Mark L. Evanston IL USAANM HAWKINS; Cory A.AACI ShorewoodAAST WIAACO USAAGP HAWKINS; Cory A. Shorewood WI US - The present invention provides an apparatus and rapid methods for extracting strontium ions from urine to provide a concentrated and purified strontium-90 extract suitable for scintillation measurements. The methods remove organic compounds, pigments, and alkali metal ions that can interfere with quantitative determination of strontium-90 in urine. A method of the invention comprises acidifying urine and removing organic pigments therefrom, loading a known quantity of so-treated urine onto a diphosphonic acid-based ion-exchange resin; flowing aqueous methanesulfonic acid through the diphosphonic acid-based ion-exchange resin to elute alkali metal ions therefrom; eluting strontium ions off of the diphosphonic acid-based resin and on to a strontium extraction chromatographic resin with a concentrated aqueous nitric acid solution; subsequently flowing water or a dilute acid stripping solution through the strontium extraction resin to strip the strontium from the strontium extraction resin; and collecting the strontium-containing stripping solution eluting from the strontium extraction resin. | 01-17-2013 |
20130023055 | METHODS FOR MEASUREMENT OF CALCIUM IONS - Reagents and methods for determination of calcium within a sample. Specific embodiments include a reagent for determination of calcium comprising a mono-nitro substituted BAPTA-type chelator (BAPTA=1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid). Methods for accurate determination of calcium in a sample, such as a blood, whole blood, plasma or serum or any other aqueous liquid sample including cerebrospinal fluid, lymph, salivary juice or urine. Embodiments are also useful for clinical diagnoses. | 01-24-2013 |
20130040392 | Materials for Improved Adhesion Relating to Functional Cold End Coatings (CECs) and Methods of Detecting Same - Various agents for improving adhesion of cold end coatings on glass surfaces are described Also described are agents for improving bonding between cold end coatings and organic inks. And, methods and related detection solutions for detecting the presence of cold end coatings on a substrate such as a glass bottle are disclosed. Additionally, particular additives and primers are described that can be applied onto cold end coatings for improving adhesion thereto. | 02-14-2013 |
20130052742 | ANALYSIS REAGENTS AND METHOD - The invention provides a single colorimetric reagent for the measurement of oxidising agents such as free chlorine in a liquid sample which contains a food dye, whereby the oxidising agent undergoes a reaction with said food dye. A preferred food dye is Brilliant Blue FCF. There is also provided a control system for regulating the volume of reagent added to a fixed volume of sample according to a control algorithm to give a chosen excess of a reagent compound beyond that required to stoichiometrically react with the target analyte in the sample. Also disclosed are single reagents for colorimetric determination of total alkalinity and calcium hardness. | 02-28-2013 |
20130280813 | METHODS AND APPARATUS FOR DETECTING MOLECULAR INTERACTIONS USING FET ARRAYS - Methods and apparatuses relating to large scale FET arrays for analyte detection and measurement are provided. ChemFET (e.g., ISFET) arrays may be fabricated using conventional CMOS processing techniques based on improved FET pixel and array designs that increase measurement sensitivity and accuracy, and at the same time facilitate significantly small pixel sizes and dense arrays. Improved array control techniques provide for rapid data acquisition from large and dense arrays. Such arrays may be employed to detect a presence and/or concentration changes of various analyte types in a wide variety of chemical and/or biological processes. | 10-24-2013 |
20130330829 | PREDICTION OF ACUTE KIDNEY INJURY FROM A POST-SURGICAL METABOLIC BLOOD PANEL - Systems and methods are provided for predicting the likelihood of acute kidney injury. An input interface is configured to receive a plurality of features derived from the results of a post-surgical metabolic blood panel and either a pre-surgical metabolic blood panel or a perisurgical metabolic blood panel. A predictive model is configured to calculate a parameter representing a likelihood of acute kidney injury from the plurality of features. A user interface is configured to provide the calculated parameter to a user in a human comprehensible form. | 12-12-2013 |
20130344607 | PI-CONJUGATED FLUOROIONOPHORES AND METHOD FOR DETERMINING AN ALKALI ION - The present invention relates to π-conjugated fluoroionophores, methods for their preparation, and their use and a method for determining an alkali ion. | 12-26-2013 |
20140017796 | Embedded Indicator Dye Monitoring System and Method For An Aquatic Environment - An aquatic environment monitoring system that includes chemical indicators that are dyes immobilized in an immobilizing medium, such as a hydrogel, and supported on a holder such that an optical reader may be used to illuminate the indicator dyes. The chemical indicator dyes include chemical indicator dyes that are sensitive for detecting calcium, magnesium, and carbon dioxide present in the aquatic environment. | 01-16-2014 |
20140186965 | Methods to Dissolve Beryllium and its Compounds Present in samples to facilitate determination of beryllium in these samples - A safer, low-cost practical method of dissolving beryllium or a beryllium compound including beryllium oxide in a sample is disclosed. This method discloses use of acidic solutions under mild heating conditions to dissolve beryllium and its compounds. These solutions may then be used to quantitatively analyze for beryllium so as to be able to determine the amount of beryllium in the sample. These solutions may also be combined with fluorescent dye indicating solutions to determine beryllium by fluorescence. A preferred fluorescent dye indicating solution contains a dye (10-hydroxybenzo[h]quinoline-7-sulfonate) which specifically binds with beryllium under basic conditions. | 07-03-2014 |
20140242708 | DEVICE AND METHOD FOR DETERMINING PROCESSING CAPACITY - A system and method for determining a remaining processing capacity of a scrubber having a flow path and a processing material disposed along the flow path. A device may comprise a plurality of optical sensors disposed within the processing material and arranged along the flow path, a light source, and a processor for determining the capacity according to signals received from the optical sensor. The device may be used to illuminate processing material adjacent to each optical sensor using the light source, measure a light value reflected by the processing material at each optical sensor, and determine the remaining processing capacity of the scrubber, using the processor, based on the measured light value. Devices may comprise a memory, such as a non-volatile memory to allow multiple uses of a scrubber without reloading with fresh processing material. | 08-28-2014 |
20150079687 | LITHIUM REAGENT COMPOSITION, AND METHOD AND DEVICE FOR DETERMINING LITHIUM ION AMOUNT USING SAME - [Problem] To provide to a reagent composition used in quantitative measurement of lithium in aqueous solutions such as biological specimens and environmental liquid samples by a simple colorimeter or ultraviolet-visible light spectrophotometer immediately, a reagent composition which permits to measure a concentration of lithium by visual observation, and a method and apparatus for measuring lithium ion by using the reagent. | 03-19-2015 |
20150079688 | Multi-Compartment Package - A package comprising a body comprising a first compartment containing a first substance and a second compartment containing a second substance. The package includes a first state in which the first compartment is isolated from the second compartment such that the first substance is separated from the second substance, and a second state in which the first compartment communicates with the second compartment such that the first substance and the second substance combine. | 03-19-2015 |
20150132856 | DETECTION OF QUANTITY OF WATER FLOW USING QUANTUM CLUSTERS - The preparation of silver quantum clusters embedded in organic-templated-boehmite-nanoarchitecture (OTBN) and its use as a sensor for quantity of water flow measured by change of color in visible light upon flow of contaminated water have been provided. Silver quantum clusters-embedded OTBN are highly luminescent. Since the quantum clusters are embedded in the matrix, they are highly stable over a long period of time. The composition described here is utilized in the form of a device for ‘visible/ultraviolet light color change-based detection’ upon passage of water through a water purification device. Upon interaction with ions present in water, luminescent silver clusters undergo chemical transformation to Ag | 05-14-2015 |
20160047748 | FLUORESCENT PROBE - [Problem] To provide a fluorescent probe having a novel fluorophore. [Solution] A compound represented by general formula (I), or a salt thereof. | 02-18-2016 |
20160091443 | NON-INVASIVE SENSING OF FREE METAL IONS USING ION CHEMICAL EXCHANGE SATURATION TRANSFER - The invention features a novel non-invasive approach for imaging, detecting and/or sensing metal ions with improved sensitivity and specificity in a biological sample or tissue. In certain embodiments, the invention provides a MR contrast-based approach for imaging, detecting and/or sensing metal ions in the biological sample/tissue containing various background ions by using 19F-based chemical exchange saturation transfer (CEST) technique. | 03-31-2016 |
20160109359 | DEVICE FOR MULTIPLE TESTS FROM A SINGLE SAMPLE - A sample device and method for analyzing a sample are claimed. The sample device is a flat disc containing channels and wells for directing a sample to reagents located in the disc and for mixing the sample with the reagents. The disc is mounted on an analyzer and the sample is pumped into the disc, divided into a plurality of sub-sample, and at least some of the sub-samples are mixed with a number of reagents. The resultant analytes are analyzed spectrophotometrically for a determination of the concentration of various substances in the sample. The present invention permits multiple tests to be performed quickly and automatically with minimal operator involvement. | 04-21-2016 |
20160377586 | HARDNESS-MEASURING COMPOSITION, HARDNESS-MEASURING REAGENT KIT, HARDNESS MEASUREMENT METHOD, AND FOULING PREVENTION METHOD FOR HARDNESS-MEASURING DEVICE - Provided is a hardness-measuring composition that is used for prevention of measurement error of the measurement unit of a water hardness-measuring device by deposition of the staining components contained in sample water. | 12-29-2016 |